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☆ Orcas killed a great white shark for its liver in Australia, scientists confirmed, leaving the sharks one less place to hide
▼ + stars: | 2023-11-30 | by ( Sonam Sheth | ) www.businessinsider.com time to read: +4 min

Scientists confirmed that it was killed by orcas, who hunted the great white for its liver. AdvertisementIn October, reports of a great white shark's mangled carcass washing ashore in a town in Victoria, Australia sparked suspicion. Hunting great white sharks for their fatty liverA female killer whale and her newborn calf in Grays Harbor near Westport, Washington. One less place great whites can hide from liver-seeking orcasKiller whales hunt great white sharks in waters across the world. While Australia is an entirely different part of the world than South Africa, it's now one less place where great white sharks can hide from liver-seeking orcas.

Persons: orcas, —, Adam Miller, Miller, Candice Emmons, mako, Kenneth C, it's Organizations: Service, Portland, Facebook, Victoria's Deakin University, ABC Radio Melbourne, NOAA Fisheries, Reuters, for Whale Research Locations: Australia, Victoria , Australia, Grays Harbor, Westport , Washington, South Africa, South Africa's, Africa's

☆ A herd of orphan elephants could be the key to bringing back the woolly mammoth
▼ + stars: | 2023-07-22 | by ( Ashley Strickland | ) edition.cnn.com time to read: +6 min

Editor’s note: A version of this story appeared in CNN’s Wonder Theory science newsletter. But a key question is whether such animals could survive if they roamed the Arctic tundra as their ancestors did thousands of years ago. Eventually, the bonded herd will make its way into the wild, where its progress can be monitored for the next decade. Sign up here to receive in your inbox the next edition of Wonder Theory, brought to you by CNN Space and Science writers Ashley Strickland and Katie Hunt. They find wonder in planets beyond our solar system and discoveries from the ancient world.

Persons: paleobiologist Jordan Mallon, It’s, Esme Ashe, Jepson, Katie Jones, J, Robert Oppenheimer, Christopher Nolan’s, “ Oppenheimer, ”, Ashley Strickland, Katie Hunt Organizations: CNN, Canadian Museum of Nature, University of Cambridge, Southern Resident, for Whale Research, Virgin Galactic’s, CNN Space, Science Locations: Botswana, China, Ottawa, Chile, Chicago . Wild, Pacific Northwest, North America

☆ Orca moms fiercely protect their sons from bullying and fights — but not their daughters, study suggests
▼ + stars: | 2023-07-21 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +5 min

Older orca mothers may protect their sons from bullying well into adulthood. Orca males carry fewer bite marks if their moms are alive in their old age, a study found. Moms may step in if their sons are in troubleTooth rake marks left behind on a Southern resident killer whale. David Ellifrit, Center for Whale ResearchThis new research, from the Universities of Exeter and York in the UK and the Center for Whale Research in Washington, suggests moms could be going even further for their sons. By protecting their sons, older females may be increasing the pod's chance of passing on its genes, while expending fewer resources.

Persons: Charli Grimes, Michael Weiss, Grimes, David Ellifrit, Darren Croft Organizations: Service, University of Exeter, Southern, for Whale Research, Center, , Research, Exeter University, for, Universities of Exeter, Center for Whale Research Locations: Wall, Silicon, synchrony, Southern, York, Washington

[1/5] A killer whale member of the Bigg's orca T65B pod is seen in the Salish Sea near Eastsound, Washington, U.S., July 7, 2023. While the interactions may be frightening, they have also spawned a popular social media trend that humorously suggests killer whales are rising up to attack wealthy yacht owners. Dr. Michael Weiss, research director of the Center for Whale Research, has another theory for the orcas’ behavior – it’s a fad. "We've seen killer whales do fad-like behavior, and other cetaceans have fads. In 1987, Washington’s Southern Resident orcas suddenly began wearing dead salmon on their heads, like hats.

Persons: Matt Mills McKnight, orcas, Deborah Giles, Giles, Olivia Hafey, Hafey, it's, Dr, Michael Weiss, Weiss, We're, Matt McKnight, Jane Ross, Mary Milliken, Diane Craft Organizations: REUTERS, Puget Sound, University of Washington’s, Harbor Laboratories, Southern, Center for Whale Research, Reuters, Washington’s, Thomson Locations: Eastsound , Washington , U.S, Matt Mills McKnight SEATTLE, . Washington, Portuguese, Washington’s San Juan Island, Seattle

☆ Why grandmother killer whales go through menopause
▼ + stars: | 2023-07-20 | by ( Katie Hunt | ) edition.cnn.com time to read: +5 min

The head of a killer whale pod shares her knowledge of the best hunting spots and more than half the fish she catches with her family members. Female orcas help their sons navigate the complexities of orca social life and protect them from fights with other killer whales. The center has been studying this critically endangered group of killer whales, which now number around 75, since 1976. “Males have the opportunity to mate with multiple females, and they do this outside of their own social group. Only humans and five species of toothed whales are known to experience menopause, the new study noted.

Persons: —, ”, Charli Grimes, David Ellifrit, Grimes, “, ” Grimes, Katie Jones, doesn’t, … Organizations: CNN, Southern Resident, Center for Whale Research, Centre for Research, UK’s University of Exeter, UK's University of Exeter, for, for Whale Research Locations: Pacific Northwest, North America, Harbor , Washington

☆ Meet the family of orcas thought to be behind the recent boat encounters and attacks — White Gladis' pod
▼ + stars: | 2023-07-03 | by ( Rebecca Cohen | Jenny Mcgrath | ) www.businessinsider.com time to read: +4 min

White Gladis, the orca believed to be behind recent boat encounters, has a family acting with her. Meet White Gladis' familyWhite Gladis is part of a 6-orca pod including herself, two siblings, two calves, and a mother. She gave birth to White Gladis in 2005, who is her oldest offspring, followed by Gladis Clara and Gladis Dalila. White Gladis went on to give birth to Gladis Filabres in 2015 and Gladis Tarik in 2021. Gladis Clara, White Gladis' sibling, is a male orca, but the sex is unknown for Gladis Dalila and White Gladis' two offspring.

Persons: White Gladis, White, —, Gladis Blanca, Gladis Clara, Gladis, Gladis Filabres, Gladis Tarik, Gladis Lamari, hasn't, Gladis Dalila, Black, Gladis Peque, Gladis Isa, Gladis Matteo, Gray Gladis, Mónica, Kenneth C, Gladis Olvera Organizations: Service, Orca, Guardian, for Whale Research, Orca Working Locations: Gibraltar, Strait, Gibraltar White, orcas, Southern, Iberian

☆ Virtually every orca in an endangered North American group is suffering from mysterious skin lesions, say scientists
▼ + stars: | 2023-07-01 | by ( Isobel Van Hagen | ) www.businessinsider.com time to read: +3 min

There has been an increase in skin disease in Pacfic north-west killer whales, a new study found. There is a possible connection between the skin lesions and the declining condition of the orcas. The study found that 99% of the animals examined exhibited the skin disease. Southern Resident killer whale showing gray targets in saddle patch on October 18, 2014. This comes during a growing interest in orcas after increasing killer whale boat interactions in other waters.

Persons: —, Joe Gaydos, UC Davis, Joseph K Gaydos Organizations: Service, Privacy, PLOS ONE, UC, Center for Whale Research Locations: Pacfic, orcas, Southern, British Columbia, Washington

☆ If you see a killer whale, 'never enter the water.' What to do during an orca encounter, according to a whale expert.
▼ + stars: | 2023-05-12 | by ( Grace Eliza Goodwin | Morgan Mcfall-Johnsen | ) www.businessinsider.com time to read: +5 min

A whale expert told Khaleej Times you should "never enter the water" if you see a killer whale. There was even one incident where killer whales sank a sailboat. Nigel Killeen / Contributor / Getty ImagesLuckily, there have never been any recorded fatal orca attacks on humans in the wild, Natoli told Khaleej Times. "Try not to approach them from the back or from the front, stay on their side instead," Natoli told Khaleej Times. By contrast, in the United Arab Emirates, Natoli told Khaleej Times that sightings are rare in the region, with only about one every year and a half.

☆ Killer whales moms spend more time with their sons than daughters, and it may be threatening their survival
▼ + stars: | 2023-02-08 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +7 min

Southern Resident killer whales take care of their sons much longer than their daughters. Killer whale sons need their mom throughout their livesA Southern Resident killer whale and a calf. Among Southern Resident killer whales — a small population that spend the summer and fall off the coast of Washington state — daughters will learn pretty quickly how to fend for themselves. To care for their sons, moms have fewer babiesTwo Southern Resident killer whales. Southern Resident killer whales only feed on Chinook salmon, which is a tiny prey for a big lumbering male.

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